Vascular Disease Discovery Protocol

NCT ID: NCT03538639

Last Updated: 2025-12-26

Basic Information

• Recruitment Status: RECRUITING
• Total Enrollment: 1000 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2018-07-30
• Study Completion Date: 2037-05-15

Brief Summary

Background:

Some genetic diseases put increase the risk of heart and blood diseases, which are the number one cause of death and disability in the U.S. Researchers want to study diseases of the heart and/or blood vessels. They want to collect data and specimens from affected people, their family members, and healthy people.

Objective:

To study diseases of the heart and/or blood vessels.

Eligibility:

People age 2 and older who may have genetic disease affecting the heart and/or blood vessels Their relatives

Healthy volunteers

Design:

Participants will be screened with a medical history, physical exams, and imaging tests. Participants may have a few visits or visits for 2 weeks or more. This will depend on their age and disease status. Visits may include:

Photographs of the face and body

Heart tests

Samples taken of blood, urine, saliva, skin, and/or tissue

Scans. For some, a dye may be injected into a vein.

A six-minute walk test

Lung tests. For some, participants will blow into a tube. For others, they will breathe in a gas from a mask, have a small injection, then have a scan.

Stress tests while walking on a treadmill or riding a stationary bike

Ultrasound of veins and arteries

Devices outside the body testing the stiffness and function of arteries

Eye exam and eye tests. For some, a dye may be injected in a vein.

Blood pressure tests

Measurements of blood flow under the skin and in the arms and fingernail blood vessels

Devices outside the body testing flexibility of the blood vessels and skin, and skin temperature

Detailed Description

The NIH provides a unique opportunity for research scientists to participate in the bench-to-bedside process, which is essential for the full implementation of translational medicine programs. The study of rare monogenetic and undiagnosed diseases is a complex bedside-to-bench-to-bedside endeavor. Recent studies show that rare genetic variants are more likely than common variants to have deleterious effects on protein structure, function, and/or expression, possibly leading to clinically relevant events. Studies of large patient populations offer the opportunity to identify rare genetic variants underlying human disease and will have impactful implications for human health. We propose to characterize the etiology and natural history of rare and orphan diseases with vascular phenotypes. We will also study rare genetic modifiers and identify novel disease mechanisms contributing to common vascular diseases. Subsequent disease-related protocols may be developed based on findings from subjects enrolled in this protocol for further intensive natural history studies and potential innovative therapeutic studies. In addition to its role in investigating individuals who are of interest to the Translational Vascular Medicine Branch (TVMB) of the NHLBI, this protocol can provide a possible avenue for admitting subjects from other NIH programs, such as the NIH Undiagnosed Diseases Program, the Center for Human Immunology Trans-institute program or other NIH protocols where subjects exhibit vascular phenotypes.

Conditions

Vascular Dysfunction; Genetic Mutations; Genetic Predisposition

Keywords

Etiology of Rare and Orphan Diseases with Vascular Phenotype; Natural History of Rare and Orphan Diseases with Vascular Phenotype; Pathophysiology of Uncommon Vascular Diseases; Undiagnosed Diseases; Rare Human Diseases with Vascular Features; Natural History

Study Design

• Observational Model Type: CASE_CONTROL
• Study Time Perspective: PROSPECTIVE

Study Groups

1

Adult index cases (affected) and relatives (affected and unaffected)

No interventions assigned to this group

2

Child index cases (affected) and child relatives (affected and unaffected)

No interventions assigned to this group

3

Healthy adult volunteers

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• All subjects must be between the ages of 2-100 years old.
• Affected pregnant women if they have been referred with a known or suspected pathology or if they become pregnant while on study.
• Unaffected related pregnant women (including spouses/partners) for cord blood and tissue collection (surgical waste) only at the time of delivery.

Exclusion Criteria

• Healthy volunteers unable to give informed consent
• Healthy volunteers who decline to have blood drawn and/or tissue studies or who do not consent to have samples stored for future research.
• Cognitively impaired individuals who are not affected.
• Cognitively impaired individuals not related to affected subjects.

• Minimum Eligible Age: 2 Years
• Maximum Eligible Age: 100 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Manfred Boehm, M.D.

Role: PRINCIPAL_INVESTIGATOR

National Heart, Lung, and Blood Institute (NHLBI)

Locations

National Institutes of Health Clinical Center

Bethesda, Maryland, United States

Site Status: RECRUITING

Countries

United States

Central Contacts

William R Whalen, C.R.N.P.

Role: CONTACT

Phone: (301) 402-9841

Email: william.whalen@nih.gov

Manfred Boehm, M.D.

Role: CONTACT

Phone: (301) 435-7211

Email: boehmm@nhlbi.nih.gov

Facility Contacts

NIH Clinical Center Office of Patient Recruitment (OPR)

Role: primary

Related Links

https://clinicalstudies.info.nih.gov/cgi/detail.cgi?A_2018-H-0108.html

NIH Clinical Center Detailed Web Page

Other Identifiers

18-H-0108

Identifier Type: -

Identifier Source: secondary_id

180108

Identifier Type: -

Identifier Source: org_study_id